Paper-reeling machine.



No. 652L445. Patented June 26, 1900. A. SKOFSRUD.

PAPER REELlNG MACHINE.

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(Application filed Dec. 11, 1899.)

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No. 652,445. Patented June 26, I900.

' A. SKUFSRUD.

PAPER REELING MACHINE.

(Application filed Dec. 11, 1899.) (No Model.) 6 Sheds-Sheet 4.

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No. 652,445. Patented June 26; 1900.

A. SKOFSRUD.

PAPER REELING MACHINE.

(Application filed Dec. 11, 1899.) (Nu Model.)

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No. 652,445. Patented June 26, I900.

A. SKOFSRUD.

PAPER BEELING MACHINE.

(Application filed Dec. 11', i899.) (No Model.) 6 Sheets-Sheet 6.

Mm xmib i Ftlht ANTON -SKOFSRUD, OF CHICAGO, ILLINOIS.

PAPER REELING MACHINE;

SPECIFICATION formingpart of Letters Patent No. 652,445, dated time 26,19cc. Application filed December 11, 1899. Serial No. 789,913. (Nomodel.)

To aZZ whom it may concern.-

Be it known that I, ANTON SKOFSRUD, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Paper-Reeling Machines,of which the following is a specification.

This invention relates to mechanism for antomatically forming sheets ofpaper into rolls, tubes, or rigid cylinders; and it consists incombining With means for feeding a continuous sheet of paper alengthwise-reciprocating tubular spindle having lateralsuctionperforations, means for causing suction therein while it isstopped over the path of said sheet to pick up the edge thereof, andmeans for concurrently actuating the feeding mechanism and rotating saidspindle; in combining with said apparatus means for applying paste tothe surface of the sheet asit is wound upon the spindle; in combiningwith said apparatus'paste-applyin g mechanism acting momentarilyimmediately after the edge of the sheet is picked up and again as theroll approaches completion, and shearing mechanism acting immediatelypreceding the final action of the paste-applying mechanism; in improvedmeans for regulating the speed of the feeding mechanism in accordancewith the size of the roll, and in various other features and details ofconstruction hereinafter described and claimed.

In the drawings, Figure 1 is an elevation of apparatus embodyingmy-iuvention viewed from the reeling end of the machine. Fig. 2 is alongitudinal elevation with parts omitted from the front side of themachine, showing, among other things, the double cam-drum forprojecting, staying, and retracting the suction-spindle and theclutching mechanism for engaging the paper-feeding and spindle-rotatingdevices with the main driving-shaft-. Fig. 3 is an enlarged fractionalelevation of reeling part of the machine, showing paper feed and cuttingknife; Fig. 4, an enlarged transverse section on the line at 4 of Fig.2, seen in the direction of the arrows; Fig. 5, an enlarged plan View ofthedouble cam-drum detached ,showing the gate and switches therein; Fig.6, a transverse section through said drum on the line 6 0 of Fig. 5;Figs. 7, 8, and 9, enlarged details of the gates and switchesappertaining to said drum; Fig. 10, a fractional longitudinal sectionthrough the vacuum-cylinder and valve-piston therein, showing also aportion of the suction-spindle; Fig. 11, an enlarged detail, partly intransverse section, of the double cam-drum, the traveler operatedthereby, and the vacuum-cylinder carried by said traveler; Fig. 12, adetail of the clutch-shipping lever and its engaging catch, and Fig. 13a sectional detail showing clutch and pulley at the junction of thesections of the main shaft.

A designates a strong rectangular benchframe mounted upon suitable legsA, with transverse bars A tying said legs therebeheath and serving assupports for various bearings mentioned in the ensuing description. Forconvenience in identification the location and direction of movement ofgroups and elements of the apparatus will hereinafte'r be defined asright or left or front or rear with reference to the position of thisframe, as indicated in Fig. 2 of the drawings.

13 is a main driving-shaft in two sections 1" and 2 runninglongitudinally of the frame and turning in bearings b, secured to theaforesaid tie-bars, and B is a driving-pulley fixed to the left-handsection of said shaft and constantly driven from any suitable source.Rigidly aflixed to the right-hand section of shaft B, at the point whereit abuts against the rear section, is'a second pulley B connected bybelt I) with a smaller overhead pulley B which is suitably pinned, as byscrew B to elongated bushing B, resting and revolving in bearings bsupported by brackets B from the bench and stayed against endwisemovement by annular end flanges b snagged against the outer faces ofsaid bearings.

C is the vacuum-cylinder, sliding lengthwise through said bushing B andturned therewith and thereby through engagement of its longitudinalspline c with groove 0, cut lengthwise of the bushing. At its rear endthe cylinder is fixedly held in clamping-bushmg C, journaled in bearingC upon the traveler C which reciprocates lengthwise of the bench in ways0 to a distance advisably somewhat exceeding the width of the sheet tobe reeled. The right-hand end of the cylinder is stopped by a plug 0into which is axially tapped the suction-spindle 0 having lateralperforations c and closed at its farther end. The plug is adapted, as bykeysockets c", to be readily removed and re placed by others carryingspindles of different diameters, according to the nature of the work. i

In the vacuum-cylinder is a piston D, secured to a rod D of such lengththat when the cylinder is at the extreme left-hand limit of itsreciprocation the valve is closely adjacent to the aforesaid plug andwhich extends through the open rear or left-hand end of said cylinderand through a bearing d on the frame and at'its extreme free end isscrewthreaded to receive adjusting and jam nuts d, which confine anencircling coiled expansion-spring D against said bearing, whereby thepiston-rod is normally retracted to the full limit permitted by a collard pinned thereto on the other side of the bearin g. With thisarrangement it is evident that since the piston is held back yieldinglyagainst accompanying the cylinder in its advancing movement by itsspring-seated rod a vacuum will be formed in said cylinder during eachtraverse to the right, creating a strong suction through theperforations of the spindle, and that the drag of the vacuum uponthepiston itself will overcome the resistance of the spring D to such anextent thatthe piston will be carried along some distance in the samedirection with the cylinder until the longitudinal movement of thelatter stops at the extreme of the traverse to give space for the rotaryor winding movement, when the expansion of the spring will retract thepiston, and thus continue the lateral suction through the spindle for anappreciable time, so that it may pick up the edge of the sheet fed aboveit.

During the advancing movement of the vacuum-cylinder and until thesuction-spindle closely approximates its winding position the pulley Bis disconnected from the rear orleft-hand section of the maindrivingshaft, so that vacuum-cylinder and suction-spindle are unaffectedby the revolution of the latter; but as the traveler O nears the limitof its forward traverse it' strikes and moves the upper end ofclutch-shifter lever E, and thereby causes the engagement of slidingclutch E upon said rear section, which advisably is a conicalfriction-clutch, as shown, with said pulley, and locks the sectionstogether, when the pulley instantly by means of belt b communicatesmotion to overhead pulley B and rotates cylinder and spindle at agreatly-multiplied speed over that of the main shaft' The instant thereverse traverse of the cylinder commences, which will be after asuitable interval to permit the winding of a roll of the desired size,the pulley B must be disengaged from=the driving-section of the mainshaft to stop the rotation of the spindle, and lest the usual springemployed for such pur pose in similar locations should not act promptlyenough to break the contact be tween the friction clutch-faces Ipreferably make the unclutching positive by means of a spring-catch E onthe forward face of the traveler-block beveled advancingly at e to rideover the shifter-lever in the right-hand traverse, but shouldered inrear, as at e, to drop over and hold said lever in the left-handtraverse and carry therewith until the clutch is disengaged and thelever so inclined as to release said catch. WVhen the suction-spindlereaches the end of its forward movement and begins to revolve, it isjust in advance of and practically in flush contact with the adjacentknife-edge of the self-adjusting table F, arranged transversely to thelength of the bench-frame at the right-hand end thereof and over whichthe sheet to be wound is fed. This table is supported by pins f inconvergent guide-slots f at the top of standards F, which rise from anextension-bracket F bolted to the front of the bench-frame, and it isnormally checked in a horizontal or inclined position, depending uponthe diameter of the suction-spindle used, by an adj ustable stop f whichstays the knife-edge at the level of the upper surface of said spindle.The stop offers no resistance to any upward movement of the knife-edgc.Therefore as the papersheet is wound upon the spindle and the diameterof the roll increases the knifeedge resting thereon gradually rises andthe table tips in its guide-slots to direct the sheet constantly to thetop of the roll.

' The sheet is fed to the table and over it to the spindle by rollers Gand G, the first of which is driven and the other simply a pressure rollturning in yielding bearings g, pressed down by spring g toward saiddriven roll. The feed-roll G is driven and its speed is automaticallyincreased as demanded by the increasing diameter of the paper-roll beingwound in the following manner, to wit: Alongside pulley B on elongatedbushing B is keyed a second pulley H, which when the bushing, andconsequently the spindle, is revolved drives back by belt h to pulley H,fixed to the rear or left-hand end of countershaft H hereinafter termedthe feedshaft. Upon the right-hand end of this feedshaft is keyed afriction-disk h, which engages with a friction-wheel 7L2 upon the lowerend of a vertical shaft H turning in long sleeve-bearing h and hearingat its upper end a second friction-wheel h", which in turn engages witha friction-disk 72, on the extended gudgeon h of the feed-roller. The

friction-wheel it engages with its drivingdisk above the axis of thefeed-shaft, and the friction-wheel 77, engages with the disk which itdrives below the axis of the gudgeon of the feed-roll. Therefore anascending movement of their vertical carrying-shaft, hereinafter termedthe change-speed shaft, will result' in lengthening the driving-surfacein contact with one for a single revolution of the feed-shaft andcontracting the surface which the latter must travel over to produce asingle revolution of the feed-roll, thus speeding the latter, while adescending movement, on the contrary, will slow down the feed-roller. Toregulate this change of speed, the friction-Wheels may each beadjustable on its shaft by means of binding-screws 72 set in their hubs,as shown. To impart the rising movement to the vertical shaft, its lowerend is stepped upon the subtending arm 7: of a lever K, pivoted to theframe, and by its opposite arm supporting a sliding bar K in contactwith the surface of the increasing paper-roll, so that with eachadditional convolution added thereto the arm 76 is depressed and the arm7t correspondingly raised, lifting shaft H and its friction-wheels andaccelerating the feed-roll. When the reeling is completed and thesuction-spindle withdrawn, stripping off the paper-roll, the verticalchange-speed shaft will fall by its own weight to normal slow-feedposition and the lever K will be restored to starting position, where itwill be stayed by contact with lug 7& before the upper or contact end ofsliding bar K has risen where it will obstruct the ensuing advance ofthe suction-spindle, but Will come in contact with the paper woundthereon as soon as any appreciable demand is made upon the feed.

Above and parallel with the suction-spindle when in its extreme advancedposition is a smoothing and compacting roll L, mounted in hearings inthe lower ends of sliding bars L, which work in vertical ways Z in theoverhanging brackets L upstanding from the rear of the bench-frame.These bars are extended with rods 1, screw-threaded at'their ends toreceive adj usting-nuts Z whereby the limit of their downward play isdetermined,

' and encircled by coiled springs Z which press the smoothing-roll intoconstant contact with the paper-roll as the latter is wound. As saidpaper-roll increases in diameter With theprogress of the reeling thesmoothing-roll, the object of which is to lay the convolutions uniformlyand compactly together, is lifted, with its carrying-bars, against theforce of the springs Z until finally, with the completion of the reelingfriction-dogs L on a rockshaft Z engaging with each sliding bar, lockthe roll against descent while the suctionspindle is being retracted anduntil it is again advanced and begins reeling. Then the cam m on theright-hand or intermittent section of the main shaft acts against thelower end ofa rod M, guided in vertical sleeve m, and

at its upper end connected to a crank m from the dogging-shaft Z, andlifts it, rocking said shaft and disengaging the dogs, when thesmoothing-roll is immediately carried down toward and into contact withthe accumulating paper-roll.

To sever the sheet when a roll of suitable size has been reeled-on thesuction-spindle, a knife or shear blade 02 is secured to the inner faceof a block N, pinned to guide-rods N,

which play in cars n,proj ectin g inwardly from the aforementionedextension-bracket F and also through a ledger-plate n, over which thesheet is advanced by the feed devices and against which it is severed onthe descent of the knife. The knife-block N is normally held elevatedbysprings N but immediately before the rotation of the suction-spindleceases a cam or tappet P on the intermittent section of the main shaft Bstrikes the pendent arm 13 of an elbow-lever P, pivoted atp to astandard P from the bench-frame and forces down the overhanging arm 19of said lever, which normally rests in contact with said block, carryingthe block down and cansin g the knife thereon to shear past theledgerplate. This action takes place sufliciently in advance of thecessation of rotation of the spindle to permit the reeling in of allthat part of the sheet extending along the table between spindle andshearing mechanism.

One of the purposes for which this machine is designed is to form tubesfor firework use. This requires that both the initial and the final edgeof the paper-roll shall be pasted, and to that end a paste-trough R islocated beneath the bench-frame to contain a supply roll R, having itsgndgeons seated in open bearings r in the ends of said box and pivotedin the lower end of frame-bars R which at their upper ends, on the rearside of the advanced position of the suction spindle, carry a roller r,adapted to be swung into contact with said spindle or the paper-rollthereon. Over this roll 0" and around a. lower roll r mounted by itsgndgeons in longitudinal slots r in said frame-bars and adapted to bearby gravity against the supply-roll, is led an endless paste-apron Rwhich is moved each time it comes in contact with the revolvingpaper-roll, and thereby moves the supplyroll. Normally the apron is keptaway from the paper-roll by expansion-springs r seated against bentretraction-arms S, pivoted to said frame-bars and pressing outwardagainst the heads of dowel-pins 5, playing through said arms andconnected to the bars; but immediately after the new edge of the sheetis picked up by the suction-spindle the lower arms of bent levers S arestruck by tappets s on the intermittent section of the main shaft andthe upper arms thereof are carried forward to strike the paste-framebars and force them toward the spindle against the resistance of saidsprings r causing paste to be applied to the paper edge, the paste-framebeing immediately retracted by the springs as the tappets pass off ofthe lever-arms. As the paper-roll increases in size some provision isnecessary to keep the paste-apron at a suitable distance therefrom thatpaste may neither be applied where it is not wanted nor the operatingdevices changed in their rela, tions. To this end the upper extremitiesof the bent retraction-arms are provided with antifrictiona-olls .9which rest on inclined tracks 5 cut in the sliding bars L of the 'thelifting of said roll by the increase in size of the paper-roll saidretraction-bars shall be forced out, carrying the paste-frame with them,away from the spindle. When the knife has been actuated and the reelingof the paper approaches its completion, a second set of tappets s onsaid intermittent section of the main shaft strike the bent levers S andagain force the paste-frame inward that the apron may touch and preparethe roll for the pasting down of the terminal edge by the pressure ofthe smoothing-roll. Nuts .95 on the dowel-pins enable the stress ofsprings r to be adjusted so that the normal distance of the paste-framemay be determined nearer to or farther from the suctionspindle, and thetappets s and 8 may be set by means of screws 3 passing through theirhubs to advance or retard or omit altogether one or both of the pastingmovements. The paste -frame, with its attached retractionarms, beingunconnected, except by contact with the paste-trough and with theinclined tracks 8 may be lifted bodily out of the machine in case it isintended to merely reel and not to paste the paper sheet. Thesuctionspindle in its advancing movement passes through and is guided bya bearing S located at the left-hand side of the passageway for thepaper sheet, so that in reeling the adjacent end of the paper-roll ispractically in contact with the right-hand side of said bearing.Therefore when the series of operations, heretofore described,terminating with the final severing and pasting of the sheet arefinished and the suction-spindle begins its retreating traverse,followed immediately by the cessation of rotary movement, the paper-rollis stopped by this bearing and stripped from the spindle to drop throughthe open bench-frame into any suitable receptacle .placed beneath.

It is evident that the movements and effective engagements of thevarious elements of the machine may be primarilyinduced and controlledin a great number of ways from the main shaft; but that which I havespecially devised and prefer to use for the pur pose consists in areversely-cam-grooved drum T, Figs. 2 and 5, keyed to the rear orlefthand section of the main shaft, and by the revolution of which thetraveler is alternately carried to the right from its rearmost position(indicated in Fig. 2) until it has engaged and operated theclutch-shifter, held stationary while the suction-spindle is beingrotated, and finally withdrawn to its starting position to immediatelyresume its forward traverse. For the purpose of describing this drum andits mode of operation it will be conventionally assumed that the Viewthereof in Fig. 2 is a side elevation, and Fig. 5 a top plan. Then atthe outset the pendent roller T engages with the longitudinally-trendingcam-grooves T and T of said drum at the neutral point 00, Fig. 5, and inthe advancing"- movement, with the drum rotated as indicated by thearrow, it follows the groove T and is in thrusting contact with the rearedge if thereof, ultimately returning by the groove T and in contactwith the front edge 25 of said groove. The two grooves are describedaround the drum on opposite spirals, merging into each other with a slowor rounded sweep at the starting-point, crossing each other centrallybeneath the drum, and meeting again on top at the return-point X in anangle which opens into a circumferential groove T", which is traversedby the rollerT during an entire revolution of said drum before enteringthe return-groove,whereby the traveler is held stationary during thereeling operation.

In order that the traveler-roll may not take the wrong groove at thepoint where the grooves cross each other, each groove is provided uponits contact edge t and 1., respectively, with a spring-held hinged gate25 and t normally closing the entrance to the crossing and adapted whenopened to make the contact edge of its respective groove continuousthereacross. This gate is struck by the traveler-roll in its approach tothe crossing and pushed open to afford a bridge for its passage.Afterhaving left the gate in the advancing groove T the traveler rollapproaches the return-angle, and here it is requisite that its entranceinto return-groove T should be temporarily barred, so that it may withcertainty engage with'the delay-groove T and travel therearound itsallotted period. To this end just before reaching said point it strikesand rides upon a yielding cam-block T closing the groove T depressingit, and thereby rocking a lever t on fulcrum t and raising a guard-blockT to close the entrance to the return-groove. Simultaneously with thedepression of cam-block T and elevation of guard-block T a cam-block Tis raised in the delay-groove T in advance of the returnpoint, and aswitch-block T connected therewith by lever t, fnlcrumed at and untilthen closing the entrance to the delay-groove, is retracted, opening aclear passage for the roller. This simultaneous action of the guard andswitch blocks and their cams is induced by intercommnnicating lever iand when once thrown the parts are maintained inposition until againactuated by the travelerroll by the frictional contact of spring-washerst on their lever-fulcrums or other suitable means. The traveler-rollhaving entered the annular delay-groove journeys therearound until itstrikes and depresses cam-block T near the return-point, thus throwingup the switch -block T and retracting the guardblock T closing thedelay-groove to further advance and opening a track into thereturngroove, which it follows to gate i and, bridging the crossingtherewith, continues back to the starting-point, when it immediatelycommences a fresh advance, of course carrying with it the traveler andits attachments in all these movements.

I do not limit myself to the specific mechanism herein described exceptas hereinafter definitely pointed out, considering that it may begreatly varied without departing from the spirit of my invention; but

What I claim, and desire to secure by Letters Patent, is

1. The combination, in a machine for reeling paper, of mechanism forfeeding and severing the sheet, a suction-spindle for picking up andreeling the sheet, means for projecting said spindle across thefeed-passage for said sheet and retracting it therefrom, means forinducing suction in said spindle while so projected, and means forconcurrently rotating it to reel the sheet.

2. The combination, in a machine for reeling paper, of mechanism forfeeding and severing the sheet, a suction-spindle for picking up andreeling the sheet, means for projecting said spindle across thefeed-passage for said sheet and withdrawing it therefrom, means forinducing suction in said spindle while so projected, means forconcurrently rotating it to reel the sheet, and means for applying pasteto the sheet as it is reeled.

3. The combination, in a machine for reeling paper, of mechanism forfeeding and severing the sheet, a spindle for reeling the sheet, meansfor picking up and binding the advancing edge of said sheet to thespindle, means for projecting said spindle across the feedpassage forsaid sheetand retracting it therefrom, means for revolving the spindlewhile so projected, and means for stripping the finished roll in saidretracting movement.

4:. The combination, in a machine for reeling paper, of mechanism forfeeding and severin g the sheet,a spindle for reeling the sheet, meansforpicking up and binding the advancing edge of said sheet to thespindle, means for projecting said spindle across the feedpassage forsaid sheet and retracting it therefrom, means for revolving the spindlewhile so projected, pasting mechanism actuated to apply paste to thesheet immediately after it is picked up, and again as the rollapproaches completion and means for stripping the roll from the spindleas the latter is retracted.-

5. The combination, in a machine for reeling paper, of mechanism forfeeding and severing the sheet, a suction-spindle for reeling the sheet,means for projecting said spindle athwart the feed-passage for saidsheet and withdrawing it therefrom, a bearing-block through which thespindle is retracted, constitutinga stripper for the finished roll,means for inducing suction in said spindle while in its projectedposition, and means for concurrently imparting rotation thereto.

6. The combination in a machine for reeling paper, of mechanism forfeeding and severing the sheet, a suction-spindle for reeling the sheet,means for projecting said spindle ering the sheet, a suction-spindle forreeling the sheet, means for projecting said spindle athwart thefeed-passage for said sheet and withdrawing it therefrom, means forinducing suction in said spindle while in its projected position, topick up the sheet, means for concurrently imparting rotation thereto,pasting lmechanism adapted to move toward and away from said spindle andmeans actuating said pasting mechanism to gum said sheet twice duringthe reeling thereof, once at the beginning and once at the end.

8. The combination, in a machine for reeling paper, of mechanism forfeeding and severing the sheet, a reeling-spindle and anautomatically-tilting feed-table extending be" tween said feedingmechanism and the reeling position of the spindle and arranged to betilted by contact of its proximate edge with the accumulating roll beingreeled.

9. The combination, in a machine for reeling paper, of mechanism forfeeding and severing the sheet, a reeling-spindle anauto1natically-tilting feed-table arranged between said feedingmechanism and the reeling position of said spindle, and adapted to restby its proximate edge on the accumulating roll, and avertically-yielding presser-roll arranged above said position of thespindle, and be tween which roll and the table the sheet is drawn uponsaid spindle.

10. The combination, in a machine for reeling paper, of mechanism forfeedingand severing the sheet, a reeling-spindle, changespeed gearingfor varying the action of the feeding devices, a presser-bar arranged tocontact with the surface of the accumulating roll, and a leverintermediate between-said bar and the change-speed gear, whereby thelatter is regulated according to the size of the roll.

' 11. The combination of the longitudinally reciprocatingreeling-spindle, the verticallyyielding presser-roll, the sliding barsin which it is mounted, the dogs arranged to lock said bars in elevatedposition when the spindle is withdrawn from beneath the presser-roll,and the cam whereby said dogs are disengaged when the spindle is againprojected.

12. The combination of the reeling-spindle, the feed-rolls, thefeed-regulating bar and the lever which it operates, theverticallysliding speed-regulating shaft carrying friction-wheels andstepped on said lever, a disk on a driven shaft engaging one of saidfriction wheels, and a disk on the gudgeon of the positive feed-wheelengaging the other of said friction-wheels.

13. The combination of the reeling-spindle, the swinging paste-frame andits apron, the retraction-arms therefor, the springs holding the frametoward said arms, the verticallyyielding pressure-roll, itscarrying-arms havinginclined tracks with which the upper ends of theretraction-arms engage, and the actuating-lever, for the paste-frame.

14. The combination with the reeling-spindle and the swingingpaste-frame, of the actuating-lever for said frame, and the adjustablecams for operating said lever.

15. The combination of the reeling-spindle, the presser-roll and itsslide-bars with inclined ways, the paste-frame, the feed-rolls, thechange-speed gear, its actuating bar and lever, the spring-borneknife-block and knife, the bent lever whereby said block isdepressed,the bent lever for actuating the pasteframe, and the cams onthe front section ofthe main shaft for operating the latter two levers.I

16. The combination with the reeling-spindle and the feed-rolls, of thefeed-table mounted in the convergingly-slotted standards, and theadjustable stop for the inner side of said feed-table.

17. The combination-of the longitudinallyreciprocating reeling-spindlehaving lateral perforations, the vacuum-cylinder, the piston therein,the piston-rod spring held by a stationary part of the frame, and thevalve in the piston.

' 18. The combination of the reciprocating reeling-spindle, the vacuumcylinder, the traveler, and the actuating-drum, having reversed setlateral cam-grooves and circumferential delay-groove with suitablegates, guard reeling-spindle, the vacuum-cylinder, the

traveler, means for actuating said traveler, a

pulley for transmitting rotary motion to the reeling-spindle, a clutch,and a clutch-shifter traveler carrying said cylinder, means forreciprocating said traveler, a pulley for transmitting rotary motion tothe spindle, a clutch for engaging said pulley, a clutch-shifting leverclosed by the push of the traveler in its forward traverse and aspring-catch on the traveler adapted to engage with said shifterlever insaid forward traverse and retract it positively in the retreatingtraverse.

21. The combination of the divided main shaft, the reversely-g'roovedcam-drum on the rear section thereof, the traveler engaging with saiddrum, the vacuum-cylinder and suction-spindle reciprocated by saidtraveler, a pulley on the forward section of the main shaft, a pulleyslidingly connected with the vacuum-cylinder, a belt connecting the twopulleys, a clutch carried by the rear section of the main shaft toengage the pulley on the forward section, a clutch-shifting lever, andmeans carried by the traveler for positively actuating saidshifter-lever.

constructed with the reverse camgrooves,the circumferentialdelay-groove, the spring-held swinging gates for opening and bridgingthe crossings of the cam-grooves, and the automatically-actuated guardand switch-blocks for connecting said cam-grooves with the delay-groove.V

In testimony whereof I affix my signature in presence of two witnesses.

ANTON SKOFSRUD.

Vitnesses:

O. D. MoMAnoN, J. BUEHLER.

V 7 22. The actuating-drum herein described,

